No regrets, even though I had the USB connector agony and I've been without the N900 for nearly 3 weeks while I persuade Nokia to do the right thing! The N900 is the ultimate Swiss army knife of mobile devices: it does pretty much everything, and if it doesn't then finding solutions is rarely far away.
Could it be better? Sure - longer battery life, better bluetooth, maybe... However, compared to other devices it wins on all-round capability, IMO.
it's the best internet tablet/smartphone/handy/whatsoever on the world ^^
I don't regret it at all, i'm using it since two years now and it's way much better than iphone and android (which the n900 supports )
i really love the keyboard of this device. in my opinion it is unbeatable as internet tablet/smartphone/handy/whatsoever by the other devices (at the moment)